National Instruments NI 9229 - Manual (Page 25)

© National Instruments Corp. 25 NI 9229/9239
Safety
Safety Voltages
Connect only voltages that are within the following limits.
Channel-to-earth ground isolation
Continuous ................................. 250 V
rms
,
Measurement Category II
Withstand.................................... 2,300 V
rms
, verified by a 5 s
dielectric withstand test
Channel-to-channel isolation
Continuous ................................. 250 V
rms
,
Measurement Category II
Withstand.................................... 1,390 V
rms
, verified by a 5 s
dielectric withstand test
Zone 2 hazardous locations applications in Europe
Maximum voltage
(channel-to-earth ground
and channel-to-channel) ............. 60 VDC,
Measurement Category I